My original C-4 died today...very very sad day. But...I ordered a backup when they were on sale awhile back. I took the radio stick out of the old, popped it into the new, fired it up and ALL IS GOOD! It was assigned a DHCP but I did like you mentioned, I just replaced the MAC address in the router's allow access reserved DHCP assignment table, bounced the Hubitat and all is lined up again. VERY VERY happy about that because of all my ESP8266's that are running without OTA enabled. Whewwww!
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